Begin with a dynamic warm-up, including jumping jacks, high knees, and arm circles. For double-unders, aim for a consistent rhythm and avoid whipping yourself with the rope. If double-unders are too challenging, modify with single unders or jumping jacks. In kettlebell swings, focus on using your hips to generate power and maintain a neutral spine. If 55/35 lbs is too heavy, reduce the weight to maintain proper form. For air squats, maintain a consistent pace and ensure full range of motion. If air squats are challenging, reduce the reps or modify with box squats or assisted squats. This workout is a high-intensity cardio and strength workout. Push yourself to maintain a consistent pace throughout the rounds, and finish with a cooldown involving stretching, particularly focusing on the legs and hips.